Thermo Fisher Scientific MultiShot StripWell Competent Cell Kits User guide

Brand
Thermo Fisher Scientific
Model
MultiShot StripWell Competent Cell Kits
Type
User guide
MultiShot™ StripWell Competent Cell Kits
Catalog Numbers C8696-01, C7396-01, C6096-01, C4496-01, C4096-01, C4096-05,and C4096-10
Publication Number MAN0017711 Revision A.0
WARNING! Read the Safety Data Sheets (SDSs) and follow the handling
instructions. Wear appropriate protective eyewear, clothing, and gloves. Safety
Data Sheets (SDSs) are available from thermosher.com/support.
Product description
The Invitrogen™ MultiShot™ StripWell Competent Cell Kits contain chemically
competent E. coli cells in StripWell tubes to simplify medium- and high-volume
bacterial transformations. The StripWell format provides the exibility to set up the
exact number of transformations required for your particular experiment.
Contents and storage
Kit type Cat. No.
MultiShot™ StripWell BL21 Star™ (DE3) Competent Cells, 1 rack C6096-01
MultiShot™ StripWell DH5α™ T1R Competent Cells, 1 rack C4496-01
MultiShot™ StripWell Mach1™ T1R Competent Cells, 1 rack C8696-01
MultiShot™ StripWell Stbl3™ Competent Cells, 1 rack C7396-01
MultiShot™ StripWell TOP10 Competent Cells, 1 rack C4096-01
MultiShot™ StripWell TOP10 Competent Cells, 5 racks C4096-05
MultiShot™ StripWell TOP10 Competent Cells, 10 racks C4096-10
Contents 1 rack kit 5 rack kit 10 rack kit Storage
Chemically competent cells
(50 µL/tube) 96 StripWell tubes 5 × 96 StripWell
tubes
10 × 96 StripWell
tubes
–80°C to –70°C
pUC19 vector, supercoiled
(10 pg/ µL) [1] 50 µL 50 µL 2 × 50 µL
S.O.C. medium 2 × 15 mL 10 × 15 mL 20 × 15 mL Room temperature
or 4°C
[1] In 5 mM Tris-HCl, 0.5 mM EDTA, pH 8
USER GUIDE
For Research Use Only. Not for use in diagnostic procedures.
Genotype
Strain Genotype
BL21 Star™ (DE3) F–
omp
T
hsd
SB (rB– mB–)
gal
dcm
rne
131 (DE3)
DH5α™ T1RF– Φ80
lac
ZΔM15 Δ(
lac
ZYA-
arg
F)U169
rec
A1
end
A1
hsd
R17 (rK– mK+)
pho
A
sup
E44
thi
-1
gyr
A96
rel
A1
ton
A
Mach1™ T1RF– Φ80
lac
ZΔM15 Δ
lac
X74
hsd
(rK– mK–) Δ
rec
A1398
end
A1
ton
A
Stbl3™F–
mrrhsd
S20(rB– mB–)
rec
A13
sup
E44
ara
-14
gal
K2
lac
Y1
pro
A2
rps
L20(StrR)
xyl
-5 λ–
leu
mtl
-1
TOP10 F–
mcr
A Δ(
mrr
-
hsd
RMS-
mcr
BC) Φ80
lac
ZΔM15 Δ
lac
X74
rec
A1
ara
D139 Δ(araleu)7697
gal
U
gal
K
rps
L20(StrR)
end
A1
nup
G
Required materials not provided
• 42°C water bath (High Eciency Transformation Protocol only)
• 37°C shaking incubator
• LB agar plates with appropriate antibiotic (e.g., ampicillin for transformation
controls)
• Ice bucket with ice
Procedural guidelines
•IMPORTANT! Do not transform chemically competent cells by electroporation.
The salt content of the buer will cause arcing and kill the cells.
• Be extremely gentle when working with competent cells. Competent cells are
highly sensitive to changes in temperature or mechanical lysis caused by
pipeing. Start transformation immediately after thawing the cells on ice. Mix
cells by gently tapping the tubes, or stirring with a pipee tip; do not mix by
pipeing up and down.
• Practice sterile technique when handling S.O.C. medium to avoid contamination.
• Avoid freeze-thaw cycles for pUC19 control DNA. Prepare aliquots of pUC19
control DNA and store at –80°C.
• Minimize handling of StripWell tubes. Remove the required number of tubes for
an experiment and return the unused tubes to the freezer.
• Handle StripWell tubes carefully when using a water bath to avoid accidental
contamination of cells.
• Perform a transformation control to test the transformation eciency of the
competent cells in the kit. See “Calculate transformation eciency“ on page 5
for details.
MultiShot™ StripWell Competent Cell Kits
Genotype
2
MultiShot
™
StripWell Competent Cell Kit User Guide
Transformation procedures
Two protocols are provided to transform MultiShot™ StripWell Competent Cells.
Consider the following factors when choosing which protocol to use.
If you wish to... Then use the...
maximize the number of transformants
obtained
“High Efficiency Transformation Protocol“
use an antibiotic other than ampicillin to
select for your DNA
obtain transformants as quickly as possible “Rapid Transformation Protocol“ on
page 4
The High Eciency Transformation Protocol is used to achieve the highest eciency
when transforming MultiShot™ competent cells with your DNA of interest.
Before you begin
•Warm S.O.C. medium to room temperature if necessary.
• Pre-warm LB selection plates in a 37°C incubator for at least 30 minutes.
• Pre-heat water bath or heat block to 42°C.
Prepare cells
1. Thaw tube(s) MultiShot™ competent cells on ice for 2–5 minutes.
2. Carefully remove the caps from the tube(s) and set them aside for later use.
Transform cells
1. Add ≤5 μL of DNA directly into each tube.
Note: For optimal results, do not add more than 5 μL (10% of the cell volume) of
DNA.
2. Mix the cells by gently stirring the mixture with a pipee tip three times. Do not
mix by pipeing up and down.
3. Cap the tubes and incubate the cells on ice for 30 minutes.
4. Incubate the tube(s) of cells at 42°C in a water bath. Do not mix or shake.
Strain 42°C incubation
BL21 Star™ (DE3) , DH5α™ T1R, Mach1™ T1R, and TOP10 30 seconds
Stbl3™45 seconds
5. Incubate the tube(s) on ice for 2 minutes.
High Efficiency
Transformation
Protocol
MultiShot™ StripWell Competent Cell Kits
Transformation procedures
MultiShot
™
StripWell Competent Cell Kit User Guide
3
6. Place the tube(s) on the benchtop, then add 250 μL of S.O.C. medium to each
tube.
Note: S.O.C. is a rich medium; good sterile technique must be practiced to avoid
contamination.
7. Cap the tube(s) and secure them at a 45° angle in a shaking incubator for optimal
agitation and aeration.
8. Incubate the tube(s) at 37°C with shaking at 225 rpm for 1 hour.
9. Dilute transformation reaction with S.O.C. medium as needed.
Strain Dilution factor
DH5α™ T1R, Mach1™ T1R, and TOP10 1:10
BL21 Star™ (DE3) and Stbl3™No dilution
Note: Ensure the transformation reaction is thoroughly mixed before dilution.
Plate transformed cells
1. Plate 50–100 μL of cells from each transformation reaction on pre-warmed LB
selection plates, then invert the plates and incubate overnight at 37°C.
Note: Ensure the transformation reaction is thoroughly mixed before plating.
2. Select colonies for further analysis by plasmid isolation, PCR, or sequencing.
The Rapid Transformation Protocol is used to obtain transformants as quickly as
possible, and is only compatible with vectors with ampicillin resistance. Using this
protocol to transform MultiShot™ competent cells can result in a 1-log reduction in
transformation eciency.
Before you begin
Pre-warm LB selection plates in a 37°C incubator long enough to ensure the plates
reach 37°C (a minimum of 1 hour). Prepare one plate for each transformation.
Transform competent cells
1. Thaw tube(s) of MultiShot™ competent cells on ice for 2–5 minutes.
2. Add ≤5 μL of DNA directly into each tube.
3. Mix the cells by gently stirring the mixture with a pipee tip three times. Do not
mix by pipeing up and down.
4. Cap the tubes and incubate the cells on ice for 5 minutes.
5. Immediately plate 5–20 μL of cells from each transformation reaction on pre-
warmed LB selection plates, then invert the plates and incubate overnight at
37°C.
Rapid
Transformation
Protocol
MultiShot™ StripWell Competent Cell Kits
Transformation procedures
4
MultiShot
™
StripWell Competent Cell Kit User Guide
1. Prepare competent cells as described in “Prepare cells“.
2. Add 1 μL of the pUC19 control DNA to thawed cells, then follow the instructions
in “Transform cells“ starting from step 2.
3. Plate 30–50 μL of cells on pre-warmed LB agar plates containing 100 μL/mL
ampicillin (see “Plate transformed cells“ for detailed instructions).
Calculate transformation efficiency
Use the following formula to calculate transformation eciency in terms of colony
forming units per μg of DNA (CFU/μg).
Use the following formula to determine the amount of DNA used for transformation
for ligation reactions.
Example of transformation efficiency calculation
50 ng of DNA is ligated in a 20 μL reaction. After ligation, the reaction is diluted
2-fold and 5 μL of the diluted ligation mixture is added to 100 μL of competent cells
for transformation.
After transformation, the cell suspension is diluted 5-fold and 200 μL of the diluted
cells are plated. 300 colonies are formed after overnight incubation.
Perform
transformation
control
MultiShot™ StripWell Competent Cell Kits
Calculate transformation efficiency
MultiShot
™
StripWell Competent Cell Kit User Guide
5
Troubleshooting
For troubleshooting help on competent cells, go to thermosher.com/
compcellsupport
Observation Possible cause Recommended action
Few or no colonies Problem with competent cells. Carry out the pUC19 control DNA
transformation to obtain information about the
performance of the cells.
Problem with the antibiotic in
the plate.
Confirm that the correct selection antibiotic
and concentration was used in the LB agar
plate.
Using a vector with a selection
marker that is not ampicillin
when performing the Rapid
Transformation Protocol.
If the antibiotic selection marker for the vector
being transformed is not ampicillin, use the
High Efficiency Transformation Protocol.
LB plate used for growing
colonies insufficiently warmed.
Ensure that the LB agar plates are pre-
warmed to 37°C prior to plating. Incubate LB
agar plates for at least 30 minutes if using the
High Efficiency Transformation Protocol, and
for at least 1 hour if using the Rapid
Transformation Protocol.
Transformants contain
incorrect or truncated DNA
inserts
Instability in DNA being cloned. Use Stbl3™ competent cells for transformation
to prevent plasmid recombination.
DNA mutation. Mutations may have occurred during plasmid
propagation in transformed cells. Pick a
sufficient number of colonies for
representative screening by sequencing. If all
colonies carry the same mutation, it may have
originated from the original template.
Accessory products
Product Cat. No.
LB Broth, 500 mL 10855021
LB Broth Base, powder 500 g 12780052
LB Agar, powder 500 g 22700025
X-gal, 100 mg 15520034
S.O.C. Medium, 10 × 10 mL 15544034
StripWell Caps 15088
MultiShot™ StripWell Competent Cell Kits
Troubleshooting
6
MultiShot
™
StripWell Competent Cell Kit User Guide
For European customers
The Mach1™ T1 Phage-Resistant Chemically Competent E. coli strain is genetically
modied to carry the lacZΔM15 hsdR lacX74 recA endA tonA genotype. As a condition
of sale, this product must be in accordance with all applicable local legislation and
guidelines, including EC Directive 90/219/EEC on the contained use of genetically
modied organisms.
Limited product warranty
Life Technologies Corporation and/or its aliate(s) warrant their products as set forth
in the Life Technologies' General Terms and Conditions of Sale found on Life
Technologies' website at www.thermosher.com/us/en/home/global/
terms-and-conditions.html. If you have any questions, please contact Life
Technologies at www.thermosher.com/support.
MultiShot™ StripWell Competent Cell Kits
For European customers
MultiShot
™
StripWell Competent Cell Kit User Guide
7
Manufacturer: Life Technologies Corporation | 5781 Van Allen Way | Carlsbad, CA 92008
The information in this guide is subject to change without notice.
DISCLAIMER: TO THE EXTENT ALLOWED BY LAW, LIFE TECHNOLOGIES AND/OR ITS AFFILIATE(S) WILL NOT BE LIABLE FOR SPECIAL, INCIDENTAL,
INDIRECT, PUNITIVE, MULTIPLE, OR CONSEQUENTIAL DAMAGES IN CONNECTION WITH OR ARISING FROM THIS DOCUMENT, INCLUDING YOUR USE
OF IT.
Revision history : Pub. No. MAN0017711
Revision Date Description
A 11 April 2018 New document
Important Licensing Information: These products may be covered by one or more Limited Use Label Licenses. By use of these products, you accept the
terms and conditions of all applicable Limited Use Label Licenses.
TRADEMARKS: All trademarks are the property of Thermo Fisher Scientific and its subsidiaries unless otherwise specified.
©2018 Thermo Fisher Scientific Inc. All rights reserved.
thermofisher.com/support | thermofisher.com/askaquestion
thermofisher.com
11 April 2018
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Thermo Fisher Scientific MultiShot StripWell Competent Cell Kits User guide

Brand
Thermo Fisher Scientific
Model
MultiShot StripWell Competent Cell Kits
Type
User guide
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